diff --git a/admin/css/admin-styles.css b/admin/css/admin-styles.css
index 4264b2d..b009958 100644
--- a/admin/css/admin-styles.css
+++ b/admin/css/admin-styles.css
@@ -124,6 +124,8 @@
 }
 
 /* Responsive Styles */
+
+/* 782px is the WordPress mobile admin breakpoint. */
 @media screen and (max-width: 782px) {
     .wpst-form-table th {
         width: 100%;